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Minor tweak to vdbeRecordCompareInt().

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FossilOrigin-Name: 284bde0ee20261737446eb8f5b6b36ad9bc3f355
This commit is contained in:
dan
2014-02-28 09:48:30 +00:00
parent a6efad8a97
commit 063d4a041a
3 changed files with 21 additions and 7 deletions
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14
src/vdbeaux.c
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@@ -3558,6 +3558,7 @@ static int vdbeRecordCompareInt(
i64 lhs;
switch( serial_type ){
case 1:
lhs = (char)(aKey[0]);
break;
@@ -3593,6 +3594,15 @@ static int vdbeRecordCompareInt(
lhs = 1;
break;
/* This case could be removed without changing the results of running
** this code. Including it causes gcc to generate a faster switch
** statement (since the range of switch targets now starts at zero and
** is contiguous)) but does not cause any duplicate code to be generated
** (as gcc is clever enough to combine the two like cases). Other
** compilers might be similar. */
case 0: case 7:
return vdbeRecordCompare(nKey1, pKey1, szHdr, 1, pPKey2);
default:
return vdbeRecordCompare(nKey1, pKey1, szHdr, 1, pPKey2);
}
@@ -3602,8 +3612,12 @@ static int vdbeRecordCompareInt(
}else if( v<lhs ){
res = pPKey2->r2;
}else if( pPKey2->nField>1 ){
/* The first fields of the two keys are equal. Compare the trailing
** fields. */
res = vdbeRecordCompare(nKey1, pKey1, szHdr, 0, pPKey2);
}else{
/* The first fields of the two keys are equal and there are no trailing
** fields. Return pPKey2->default_rc in this case. */
res = pPKey2->default_rc;
}